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<div class="titlepage"><div><div><h5 class="title">
<a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to"></a><a name="structboost_1_1geometry_1_1index_1_1equal__to"></a><a class="link" href="boost__geometry__index__equal_to.html" title="boost::geometry::index::equal_to">boost::geometry::index::equal_to</a>
</h5></div></div></div>
<div class="toc"><dl class="toc"><dt><span class="section"><a href="boost__geometry__index__equal_to.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___">operator()(Value
            const &amp;, Value const &amp;)</a></span></dt></dl></div>
<p>
            <a class="indexterm" name="idp17607488"></a><a class="indexterm" name="idp17607824"></a><a class="indexterm" name="idp17608160"></a><a class="indexterm" name="idp17608496"></a>
The function object comparing Values.
          </p>
<h6>
<a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.h0"></a>
            <span class="phrase"><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.description"></a></span><a class="link" href="boost__geometry__index__equal_to.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.description">Description</a>
          </h6>
<p>
            It compares Geometries using geometry::equals() function. Other types
            are compared using operator==. The default version handles Values which
            are Indexables. This template is also specialized for std::pair&lt;T1,
            T2&gt; and boost::tuple&lt;...&gt;.
          </p>
<h6>
<a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.h1"></a>
            <span class="phrase"><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.header"></a></span><a class="link" href="boost__geometry__index__equal_to.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.header">Header</a>
          </h6>
<p>
            <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">index</span><span class="special">/</span><span class="identifier">equal_to</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
          </p>
<h6>
<a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.h2"></a>
            <span class="phrase"><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.synopsis"></a></span><a class="link" href="boost__geometry__index__equal_to.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.synopsis">Synopsis</a>
          </h6>
<pre class="programlisting"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span></code><code class="computeroutput"><span class="keyword">typename</span> <span class="identifier">Value</span></code><code class="computeroutput"><span class="special">&gt;</span></code>
<code class="computeroutput"><span class="keyword">struct</span> <span class="identifier">equal_to</span></code>
<code class="computeroutput"><span class="special">{</span></code>
<code class="computeroutput">  <span class="comment">// ...</span></code>
<code class="computeroutput"><span class="special">};</span></code>
</pre>
<h6>
<a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.h3"></a>
            <span class="phrase"><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.template_parameter_s_"></a></span><a class="link" href="boost__geometry__index__equal_to.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.template_parameter_s_">Template
            parameter(s)</a>
          </h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                    <p>
                      Parameter
                    </p>
                  </th>
<th>
                    <p>
                      Description
                    </p>
                  </th>
</tr></thead>
<tbody><tr>
<td>
                    <p>
                      <code class="computeroutput"><span class="identifier">Value</span></code>
                    </p>
                  </td>
<td>
                    <p>
                      The type of objects which are compared by this function object.
                    </p>
                  </td>
</tr></tbody>
</table></div>
<h6>
<a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.h4"></a>
            <span class="phrase"><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.typedef_s_"></a></span><a class="link" href="boost__geometry__index__equal_to.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.typedef_s_">Typedef(s)</a>
          </h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                    <p>
                      Type
                    </p>
                  </th>
<th>
                    <p>
                      Description
                    </p>
                  </th>
</tr></thead>
<tbody><tr>
<td>
                    <p>
                      <a name="structboost_1_1geometry_1_1index_1_1equal__to_1a96a4ec5188f34ad90ea154308a93ebae"></a><code class="computeroutput"><span class="identifier">result_type</span></code>
                    </p>
                  </td>
<td>
                    <p>
                      The type of result returned by function object.
                    </p>
                  </td>
</tr></tbody>
</table></div>
<h6>
<a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.h5"></a>
            <span class="phrase"><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.member_s_"></a></span><a class="link" href="boost__geometry__index__equal_to.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.member_s_">Member(s)</a>
          </h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                    <p>
                      Modifier
                    </p>
                  </th>
<th>
                    <p>
                      Function
                    </p>
                  </th>
<th>
                    <p>
                      Description
                    </p>
                  </th>
</tr></thead>
<tbody><tr>
<td>
                    <p>
                      <code class="computeroutput"><span class="keyword">const</span></code>
                    </p>
                  </td>
<td>
                    <p>
                      <a class="link" href="boost__geometry__index__equal_to.html#structboost_1_1geometry_1_1index_1_1equal__to_1adb497915885d69df9aff938d16922ff3"><code class="computeroutput"><span class="keyword">operator</span><span class="special">()(</span><span class="identifier">Value</span> <span class="keyword">const</span>
                      <span class="special">&amp;,</span> <span class="identifier">Value</span>
                      <span class="keyword">const</span> <span class="special">&amp;)</span></code></a>
                    </p>
                  </td>
<td>
                    <p>
                      Compare values. If Value is a Geometry geometry::equals() function
                      is used.
                    </p>
                  </td>
</tr></tbody>
</table></div>
<div class="section">
<div class="titlepage"><div><div><h6 class="title">
<a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___"></a><a name="structboost_1_1geometry_1_1index_1_1equal__to_1adb497915885d69df9aff938d16922ff3"></a><a class="link" href="boost__geometry__index__equal_to.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___" title="operator()(Value const &amp;, Value const &amp;)">operator()(Value
            const &amp;, Value const &amp;)</a>
</h6></div></div></div>
<p>
              <a class="indexterm" name="idp17646912"></a>
Compare values. If Value is a Geometry geometry::equals() function
              is used.
            </p>
<h7><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___.h0"></a>
              <span class="phrase"><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___.synopsis"></a></span><a class="link" href="boost__geometry__index__equal_to.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___.synopsis">Synopsis</a>
            </h7><pre class="programlisting"><code class="computeroutput"><span class="keyword">bool</span></code> <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code><code class="computeroutput"><span class="special">(</span></code><code class="computeroutput"><span class="identifier">Value</span> <span class="keyword">const</span> <span class="special">&amp;</span></code> <code class="computeroutput"><span class="identifier">l</span></code><code class="computeroutput"><span class="special">,</span></code> <code class="computeroutput"><span class="identifier">Value</span> <span class="keyword">const</span> <span class="special">&amp;</span></code> <code class="computeroutput"><span class="identifier">r</span></code><code class="computeroutput"><span class="special">)</span></code>
</pre>
<h7><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___.h1"></a>
              <span class="phrase"><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___.modifier_s_"></a></span><a class="link" href="boost__geometry__index__equal_to.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___.modifier_s_">Modifier(s)</a>
            </h7><p>
</p>
<pre class="programlisting"><span class="keyword">const</span></pre>
<p>
            </p>
<h7><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___.h2"></a>
              <span class="phrase"><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___.parameter_s_"></a></span><a class="link" href="boost__geometry__index__equal_to.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___.parameter_s_">Parameter(s)</a>
            </h7><div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                      <p>
                        Type
                      </p>
                    </th>
<th>
                      <p>
                        Name
                      </p>
                    </th>
<th>
                      <p>
                        Description
                      </p>
                    </th>
</tr></thead>
<tbody>
<tr>
<td>
                      <p>
                        <code class="computeroutput"><span class="identifier">Value</span> <span class="keyword">const</span>
                        <span class="special">&amp;</span></code>
                      </p>
                    </td>
<td>
                      <p>
                        <code class="computeroutput"><span class="identifier">l</span></code>
                      </p>
                    </td>
<td>
                      <p>
                        First value.
                      </p>
                    </td>
</tr>
<tr>
<td>
                      <p>
                        <code class="computeroutput"><span class="identifier">Value</span> <span class="keyword">const</span>
                        <span class="special">&amp;</span></code>
                      </p>
                    </td>
<td>
                      <p>
                        <code class="computeroutput"><span class="identifier">r</span></code>
                      </p>
                    </td>
<td>
                      <p>
                        Second value.
                      </p>
                    </td>
</tr>
</tbody>
</table></div>
<h7><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___.h3"></a>
              <span class="phrase"><a name="geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___.returns"></a></span><a class="link" href="boost__geometry__index__equal_to.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___.returns">Returns</a>
            </h7><p>
              true if values are equal.
            </p>
</div>
</div>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2009-2013 Barend Gehrels, Bruno Lalande, Mateusz Loskot, Adam Wulkiewicz<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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